U.S. Geological Survey Home AASG Logo USGS HOME CONTACT USGS SEARCH USGS
National Geologic Map Database
Map showing publication footprint
  • Usage in publication:
    • Alfred Station coquinite member
  • Modifications:
    • Named
  • Dominant lithology:
    • Limestone
    • Coquina
    • Sandstone
    • Mudstone
    • Shale
  • AAPG geologic province:
    • Appalachian basin
Publication:

Manspeizer, Warren, 1963, A restudy of the Chautauquan series of Allegany County, New York, IN Shepps, V.C., ed., Symposium on Middle and Upper Devonian stratigraphy of Pennsylvania and adjacent states: Pennsylvania Geological Survey General Geology Report, 4th series, no. 39, p. 259-278.


Summary:

Alfred Station Coquinite Member (new name) of Rushford Lake Formation is recognized in the field as a massively bedded coquinite about 6 ft thick or a coquinite, sandstone, mudstone, and shale sequence about 50 ft thick. Occurs about 500 ft below Cuba Formation within a thick sequence of nonfossiliferous shales, sandstones, and siltstones. At type locality occurs within a clearly defined channel about 400 ft wide and 0 ft deep and consists of cross-bedded and flow-rolled coquinites and sandstones. Underlies Rush Creek member (new name). Included in McHenry Valley Substage (new) of Cassadaga Stage. Age is Late Devonian (Chatauquan).

Source: GNU records (USGS DDS-6; Reston GNULEX).


For more information, please contact Nancy Stamm, Geologic Names Committee Secretary.

Asterisk (*) indicates published by U.S. Geological Survey authors.

"No current usage" (†) implies that a name has been abandoned or has fallen into disuse. Former usage and, if known, replacement name given in parentheses ( ).

Slash (/) indicates name conflicts with nomenclatural guidelines (CSN, 1933; ACSN, 1961, 1970; NACSN, 1983, 2005, 2021). May be explained within brackets ([ ]).

Accessibility FOIA Privacy Policies and Notices

USA Gov U.S. Department of the Interior | U.S. Geological Survey
Supported by the National Cooperative Geologic Mapping Program
Page Contact Information: Personnel
Page Last Modified: Wed 12 Mar 2025 02:29:10 PM MDT